#​585 — July 8, 2025

Read on the Web

Together with  Memetria
Node.js Weekly

jsonrepair: Repair Invalid JSON Documents — This has lots of possible use cases, including dealing with weird JSON coming back from LLMs or non-compliant JSON spat out by poorly built software. You can use it from Node, as a CLI tool, or try a basic version online.

Jos de Jong

Speed Up Your Stack with Redis & Valkey Hosting — Memetria K/V offers managed Redis OSS and Valkey tuned for Node.js apps. Track large keys and gain analytics-driven insights to cut latency and improve efficiency.

Memetria sponsor

Codepoint–Safe Truncation: Fixing Emoji Slicing in Node — An app’s CSV importer kept breaking on emoji-filled rows, triggering errors. James demonstrates how swapping slice for a code-point–aware spread fixes it.

James Mulholland

IN BRIEF:

How to Build Your Own Color Search Engine — A straightforward, practical look at bringing together several technologies and skills to create an AI powered color suggestion tool (which you can try here). The techniques covered can be used for many different practical ends.

Lúí Smyth

📺 How to Build Your First MCP Server – Build your first Model Context Protocol (MCP) server that connects AI assistants like GitHub Copilot to live weather data. Debbie O'Brien

📄 What’s the Difference Between Ordinary Functions and Arrow Functions? James Sinclair

📄 Am I Online? – An interesting way to see if your app is truly online by checking a special Google URL. Anton Zhiyanov

🛠 Code & Tools

Bruno: An IDE for Exploring and Testing HTTP APIs — An open source (though a commercial version is available) Node and Electron-based desktop app for crafting and testing HTTP requests, complex and simple. Think of it as a lightweight alternative to something like Postman.

Anoop M D, Anusree P S and Contributors

Poolifier 5.0: A Worker Threads and Cluster Worker Pool — Implements worker pools using worker_threads and cluster. Now with abortable task support.

Alessandro Pio Ardizio

AppSignal Shows What Slows Your Node.js Apps — AppSignal helps Node.js devs fix bugs and performance issues fast. Easy to set up, a joy to use. Start your free trial today.

AppSignal sponsor

grammY: An Up-to-Date Telegram Bot Framework — Claims to “make creating Telegram bots so simple you already know how to do it” and supports the latest Telegram Bot API. GitHub repo.

KnorpelSenf

🔥 0x 6.0: Single-Command Flamegraph Profiling for Node — A tool that can profile and generate an interactive flamegraph for a Node process in a single command.

David Mark Clements

  • Babel 7.28.0 – The popular transpiler gets native TS configs (use Node 24+ for this), ES2026 Explicit Resource Management support, and a CommonJS sourceType mode.

  • Inquirer.js 12.7 – Collection of common interactive command line UI affordances (prompts, password entry, select lists, etc.)

  • Repomix 1.1 – Pack an entire repository into a single, AI-friendly file.

  • Secretlint 10.2 – Tool to prevent committing credentials/secrets.

  • Faker 9.9 – Generate fabricated data to your heart's content.

  • Oxlint 1.6 – Rust-powered linter for JS and TS.

📰 Classifieds

📌 Try out PinMe—a free CLI tool that deploys your static site in seconds and keeps it online forever, with zero maintenance or ongoing costs. View on GitHub.


🐱 ConfigCat Feature Flag Service lets you run gradual rollouts, A/B tests & target users without code changes. Use coupon NODE25 & save 25%!

📢  Elsewhere in JavaScript

A roundup of some other interesting stories in the broader JavaScript landscape, in case you've missed them: